#define _CRT_SECURE_NO_WARNINGS 1

#include<stdio.h>
int main()
{
	int* p1, * p2;
	int a,b,t;
	scanf("%d %d",&a,&b);
	p1 = &a;
	p2 = &b;
	t = *p1;
	*p1 = *p2;
	*p2 = t;
	printf("a=%d,b=%d\n",a,b);
	return 0;
}